Finding the Third Proportional to 254,140 and 373,818

Step by Step Solution

1. Step 1: Write the proportion equation
   254,140 : 373,818 = 373,818 : x
2. Step 2: Convert to fraction form
   254,140/373,818 = 373,818/x
3. Step 3: Cross multiply
   254,140x = 373,818 × 373,818
4. Step 4: Simplify right side
   254,140x = 139,739,897,124
5. Step 5: Solve for x
   x = 139,739,897,124/254,140
6. Step 6: Final answer
   x = 549,854.01